Received: by 2002:a25:6193:0:0:0:0:0 with SMTP id v141csp868924ybb; Wed, 1 Apr 2020 11:07:38 -0700 (PDT) X-Google-Smtp-Source: ADFU+vv6eOUG/e0KRgvTvs9rPTPFxjNd51lLwTKBi41RPN22NqG22Lh44OxgrJnl/UWs6qCdo4Kg X-Received: by 2002:a9d:6354:: with SMTP id y20mr17909994otk.171.1585764458372; Wed, 01 Apr 2020 11:07:38 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1585764458; cv=none; d=google.com; s=arc-20160816; b=ZzrECfFZxxDsanqm4baW+LbEPA621kfg7bMyz0/CObOjXYlL0KmZRsq4E7fP96NBil yRoVlcYFiav38Xh6XT6P1x/5Alk/gURj+vCjr2G0eiAdSeHFN0XdEtLgoQMBQ8t/lU9n Nqv7HxvvRQhRVO2j0mvvYe/6Fzvo5RhXBa71FnSt7CXbPgbnl+oFBE60xr2F+Hrqay6R OujdmVlG8i85OjRJLtZzi1zfymE5YrCormI+GpHcGq1QFa2HF6DVk7QmgEHBfZNe7raJ 1FlV6Grhkw0AA8ZBrfr+BbubraMvYnQUpR9Lp0M7vO9oZ2HpYDC9U78GOuqAtpRFR4Aa fH6A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:subject:cc:to:from:date :dkim-signature; bh=/jijKApbbnMOJRECEs0oYOfu80QTzEHZKrhDWvsT4g8=; b=otsQtFpEiAEY3L1/MZkexjyBKOTfHkZYXYkMonk2JAhX+RNZStCH8bDaXVC9ijf5qd Bw9E3c5D/YlyYFMbbJcNMIYzfqZZL/KAEmmT6pwrBRV2zHFp4vAd1H9U4FKvB7MNXnXK ZjgiZUOTOe2vlg/9gRFIe9Po1keycvUqWA5Wv4heTesv8Xw4jBzbA68T4kW3FlJYKB1T 352vHNhgHXKp6HerwYFNLXRyRijhTBTebiVsUrrcor2eH549l5TMXKXufL8GJc+gng6A cYf3xVnuNJcN2fsuYUCQUg6VEN3YZSmfPr2eYNobKoPmd926rKlPzwhoaDXz8XH//hvI 7fvg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=i+cOOUiG; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id t125si1141107oib.103.2020.04.01.11.07.16; Wed, 01 Apr 2020 11:07:38 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=i+cOOUiG; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732500AbgDASG0 (ORCPT + 99 others); Wed, 1 Apr 2020 14:06:26 -0400 Received: from mail.kernel.org ([198.145.29.99]:44210 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732316AbgDASG0 (ORCPT ); Wed, 1 Apr 2020 14:06:26 -0400 Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 08B1C2071A; Wed, 1 Apr 2020 18:06:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585764385; bh=wGJfsStv/o8iBthUPnKYXV5sqz3tNFOfYyySNd33CNM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=i+cOOUiGgpBf5MwOavDQT/S4h1rU9K3h2C6yvBXiKEMnJ/+RuoSfv0JMJjLPFk99M 6dmg8frVngWLpQCurTw8LF49EqpA+y30cx7Kbh4y2oEgMXGac+QviplThwcHvIABr8 qHOF+tNyTNAqnswPulNeLjHQDp1GydPzgw1c8svU= Date: Wed, 1 Apr 2020 11:06:24 -0700 From: Andrew Morton To: Daniel Jordan Cc: Pankaj Gupta , David Hildenbrand , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Duyck , Baoquan He , Kirill Tkhai , Michal Hocko , Oscar Salvador , Pavel Tatashin , Shile Zhang , Yiqian Wei Subject: Re: [PATCH v1 0/2] mm/page_alloc: fix stalls/soft lockups with huge VMs Message-Id: <20200401110624.e5caf6632215004a18a3757b@linux-foundation.org> In-Reply-To: <20200401144529.7zkqq4rfdnitg32h@ca-dmjordan1.us.oracle.com> References: <20200401104156.11564-1-david@redhat.com> <596d593e-7f36-0e24-6c67-311bd6971e89@redhat.com> <20200401144529.7zkqq4rfdnitg32h@ca-dmjordan1.us.oracle.com> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 1 Apr 2020 10:45:29 -0400 Daniel Jordan wrote: > On Wed, Apr 01, 2020 at 04:31:51PM +0200, Pankaj Gupta wrote: > > > On 01.04.20 12:41, David Hildenbrand wrote: > > > > Two fixes for misleading stall messages / soft lockups with huge nodes / > > > > zones during boot without CONFIG_PREEMPT. > > > > > > > > David Hildenbrand (2): > > > > mm/page_alloc: fix RCU stalls during deferred page initialization > > > > mm/page_alloc: fix watchdog soft lockups during set_zone_contiguous() > > > > > > > > mm/page_alloc.c | 2 ++ > > > > 1 file changed, 2 insertions(+) > > > > > > > > > > Patch #1 requires "[PATCH v3] mm: fix tick timer stall during deferred > > > page init" > > > > > > https://lkml.kernel.org/r/20200311123848.118638-1-shile.zhang@linux.alibaba.com > > > > Thanks! Took me some time to figure it out. > > FYI, I'm planning to post an alternate version of that fix, hopefully today if > all goes well with my testing. I assume you'll redo this two-patch series to apply on top of this forthcoming patch?